Journal
GEOMICROBIOLOGY JOURNAL
Volume 33, Issue 7, Pages 586-591Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01490451.2015.1063024
Keywords
Acinetobacter sp.; anaerobic denitrification; electron acceptor; electron donor; manganese-oxidizing bacterium
Funding
- National Key Technology Research and Development Program of the Ministry of Science and Technology of China [2012BAC04B02]
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology [QA201518]
- Key Laboratory of the Education Department of Shan Xi Province [12JS051]
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A novel bacterium, strain SZ28, identified as Acinetobacter sp., showed anaerobic denitrification ability using Mn(II) as the electron donor. Nitrate-nitrogen concentration decreased from nearly 16.52-mg L-1 to 4.4-mg L-1, without accumulation of nitrite as an intermediate, with a maximum of 0.063-mg NO3--N L-1 h(-1), reaching a peak of 0.085-mg NO3--N L-1 h(-1) in sodium acetate. The nitrate removal rate reached 0.067-mg NO3--N L-1 h(-1), 0.059-mg NO3--N L-1 h(-1), and 0.078 mg NO3--N L-1 h(-1) using Mn(II), S(II), and Fe(II) as electron donors, respectively. The optimum pH was 6.0, with a removal rate of 0.063-mg NO3--N L-1 h(-1)
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